Covers backtest_signal_riskmgmt leverage caps, zero-signal, IS/OOS split keys,
bar counts, OOS independence from IS losses, and Monte Carlo permutation
tests (marked slow, excluded from default pytest run).
Also excludes slow-marked tests from default addopts in pyproject.toml.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
TPTBusiness